1.3. Soaring

1.3.1. GPLIGC

GPLIGC is an application licensed under the GNU General Public License for
the analysis of IGC data files, such as those produced by the GNSS flight
data recorder. (Downloading of the data from logger devices and/or conversion
to IGC format has to be done with other software). GPLIGC can compute
a variety of statistics such as thermal climb rates and glide ratios.
Plotting of raw data or derived statistics is done through the
Gnuplot application.

Also included in the distribution is openGLIGCexplorer, an openGL
application for visualization of flight tracks in 3 dimensions against
a shaded terrain map (assuming digital elevation data is available).

1.3.2. IGCview

IGCview is a Java application designed for soaring pilots
who want to display and analyze GPS log files in the
FAI IGC
or Gardown formats. Both formats contain simple ASCII records of time
stamped latitude and longitude values. The IGC format also contains
altitude information (pressure and/or GPS) and the task (route). IGCview
can also import Gardown format files and export them in IGC format.

The program is oriented wholly towards looking at the GPS log traces
produced by glider flights. You can examine other traces, but the analysis
will not be particularly useful. It can compute quantities such as: start
to finish, average task and individual leg speeds, climb rates, L/D,
etc. It can also read and compare multiple flights in detail making it
a very useful learning tool for cross country and competition oriented
soaring pilots.

1.3.3. JFlight

JFlight is a Java based application developed for Hang-glider and
Para-glider pilots to assist with pre-flight task planning and post-flight
analysis of GPS, Barogram, Vario data. (It should prove useful to full
scale glider pilots as well). The flightbook feature provides a mechanism
for waypoint and route management. Flight tracks can be viewed on a
simple display.